Shutter-equipped gridle



July 22, 1930. E. H. SEELERT 1,771,014

' SHUTTER EQUIPPED GRILLE I I Filed Feb. '7, 1929 2 SheetS-Shet l fizzyijivmiioz/ flo iforz/flJee/eri July 22; 1930. SEELERT 1,771,014

SHUTTER EQUI PPED GRILLE Filed Feb. '7, 1929 2 Sheets-Sheet 2 9 Z/UW/M-J g Patented July 22, 1930 UiNfI.'l'."'l":TD ST ATES PATENT. CE aEDWARD in. seminar; on MINNEAPOLIS, MINNESOTA-,- ASSIGNOR To:limousine-n DIATOR ooaroanrrolvgor MINNEAPOLIS, MINNESOTA, A conrormrronor'nmn- WARE YSHUTTERIEQUIEBED'Y GRILLE Application filed- February 7,1929. f serialxNo. 338380.

My invention .hasfor its object to. provide an extremely simple andhighly eflicient shutter-equipped grille, intended for general use inconnectionwitha stack, flue orthelike and especially. well: adapted foruse in connection with'the stack of cabinet or concealedmadiation. forcontrolling the hot. air discharged from the heat exchange unit therein,or in cutting the same off entirelywithoutthe use of a valve for saidunit.

To the above end, generally stated, the invention consistsof thenoveldevices and combination ofdevices hereinafter described and defined inthe claims. 7

In the accompanying drawings, which illustrate theinvention,likecharacters indicate like parts throughout theseveralviews.

Referring to the drawings Fig. l is a. face view of anoutlet grille, inwhich the invention is tembodied', mounted 'in the discharge passagewayofthe stack. of a heat unit; i

Fig. 2 is azback viewof the grille-removed from I thestack Fig. 3' isa-fragmentary view: showing the upper left hand cornerportion of thegrille as-shown in Fig. 2, on anenlarged scale with some parts sectionedto'show. the bearing for the shutter hinge rod;

Fig. l'is aview partly'in-side elevation'and partly in transversevertical: section taken on the line 44: of Fig. 1, on an enlarged'scale;

Fig. :5 is a View in transverse vertical. sectiontaken on the line 5+5of'Fig. 1, on an em lar-ged scale Fig. 6 is afragmentary view partly inplan and' partly in horizontalsectiontaken on the line 66 of' Fig. 1, onan enlarged "scale; and

Fig. 7 is a fragmentary view principally in horizontal section taken on"the-line 7-7 of Fig. 1,.on an enlarged scale. 1

The outlet grille 8, which the invention is embodied, may be used in"connectionwith either cabinet or wall radiation and in the drawings thenumeral 9 indicates a fragment of a sheet metal cabinet having at itstop a discharge passageway in which said grille is mounted. When thegrille 8 is used in connection with wall radiation the numeral 9 wouldindicate one face of said wall and the grille. 8.would be connectedtothedischarge end of. a. stack. as illustrated, by broken. lines in Fig.4 and indicatedflby the. numeral 10. The grille r8 isformed from a flatsheet of metal having a 'multiplicity of. horizontally spaced relativelynarrow and vertically extended slot-like openings 11 withl'relativelynarrow intervening columns 1 2.. Said. grille 8 has an imperforate,marginal. portiontthat completely" surrounds the openings 11. In

forming the openings 11. in the grille 8 the displaced metal is pressedlaterally. rearward to form endless reinforcinglflanges 13 that extendcompletely around'each ofsaidopenings and perpendicular to said grilleIEach flange 13. is reduced inxheight. at each end of the respective.opening 11,,as shown .inFigs. ilto. 7, inclusive, .and indicated by thenumeral 14. to. facilitate the stamping of. the. flanges from the bodyofthergrillel. Obviously, the

fiangesl? greatly rein-force the columns 12 and strengthen the grille.8.

The grille ,8. is provided atitsbacklwitha rectangular, angle frame 15'whicliisurrou'nds the series of openings; 11. One,flangeofthe' frame-15 rests. directly .on the. back0ffthe grille. 8. at the -imperforatemarginal portion and is. rigidly secured theretoby. welding or otherwiseand the other. flangeflthereof; ex.- tends perpendicular tosaicll grilleand is spacedfromtheends. of the openings 11 A. shutterv 16 .is providedfor. controlling ,or varyingfthe vvolumeflowof hotain outward through.the, grille: 8. or. fon. entirely closing the same. ThisshutterldisformedQfroma sheet. of: fiat. metal, closely zfits...witliin-: theframe, 15. andis rigidly secured, at its upper edgeportion, toahorizontalhinge rodllZ the endsofwhich arej ournaled inbearin blocks 18.detacliably secured byv screws 19 .tothe inner faces oftheuprightmembers oftheframe openings 11 in said grille and a vertical slot22 in the shutter 16 and is pivoted to and between the side members of aU-shaped bearing 23 on the back of said shutter. The way as shown is inthe form of a relatively narrow upright plate 2& which bears aaginst theouter face of the grille 8 and is frictionally clamped thereon by a pairof screws 25 which have screw-threaded engagement with an anchor plate26. This anchor plate 26 bears against the rear longitudinal edges ofcertain of the flanges 13 at the longitudinal edges of the opening 11through which the lever handle 21 extends. Vertical slots 27 are formedin the way 24: and anchor plate 26 and aligned with the opening 11through which the lever han dle 21 extends with freedom for verticalswinging movement.

By reference to Fig. 4, it will be noted that the anchor plate has onits upper end a forwardly projecting stop member 28 which rests on thetop of the respective flange 13 and holds the way 24: against downwardshifting movement on the grille 8. The shuttor 16 is gravity closed andfor holding the same in different open positions there is provided twolaterally spaced rows of vertically spaced ratchet teeth 29 and acooperating transverse dog in the form of a pin 30. The

ratchet teeth 29 are integrally formed with the way 24 on the backthereof, extended into the respective opening 11, engage the columns 12at the sides thereof and hold the way against angular or horizontaledgewise movements on the grille 8 The dog 30 extends transverselythrough the lever handle 21 with its end portions arranged to rest onany one pair of transversely aligned ratchet teeth 29, see Figs. 6 and7. During the opening of the shutter 16 by the lever handle 21 the dog30 will freely ride overthe ratchet teeth 29 and automatically interlockwith the pair of ratchet teeth opposite which said dog is positionedwhen said lever is released. The free or outer end of the lever handle21 is transversely enlarged to form a finger piece 31 which when theshutter 16 is closed engages the way 24 at each side of its slot 26 andprevents said lever from swinging entirely within said way.

By the use of the above described shutterequipped grille the temperaturein a room may be controlled, at will, by opening or closing the shutter16 to a greater or less degree to vary the volume flow of hot airthrough said grille or by completely closing said shutter the dischargeof hot air may be completely cut off.

The above described shutter-equipped grille has a very neat and artisticappearance, is simple to operate and highly efficient in its action.

What I claim is:

1. The combination with a grille of the class described, of a shutterhinged to the grille, a way in the form of a plate having a slot, meansfor frictionally clamping the way on the grille, teeth on the wayextending through the grille and engageable therewith to hold the wayagainst shifting movement on the grille, and an operating lever attachedto the shutter, working through the slot in the way and having a dogcooperating with the teeth on the way for holding the shutter indifferent open positions.

2. The combination with a grille of the class described having a pair oflaterally spaced flanges and a passageway therebetween, of a shutterhinged to the grille, a wav in the form of a plate having a slot alignedvith the passageway, clamping means for securing the way to the grilleand engagin the flanges as a base of resistance, teeth. on the way, andan operating lever attached to the shutter working through thepassageway and the slot in the way and having a dog cooperating with theteeth for holding the shutter in different open positions.

3. The structure defined in claim 2 in which the teeth are arranged intwo rows that extend into said passageway, engage the grille at saidpassageway and hold the way against shifting movements transversely ofthe passageway.

4. The combination with a grille of the class described having on itsback a pair of upright laterally spaced flanges and a passagewaytherebetween, of a shutter hinged to the grille, a way in the form of aplate at the face of the grille and having ratchet teeth, an anchorplate bearing on the flanges, screws connecting the way and anchor platefor frictionally clamping the way onto the face of the grille, and theanchor plate onto the flanges, said way and anchor plate having slotsaligned with the passageway in the grille, and an operating leverattached to the shutter, extending through said passageway and the slotsin the way and anchor plate, and having a dog cooperating with theratchet teeth for holding the shutter in different open positions.

5. The structure defined in claim 4 in which the anchor plate engages apart on the grille to hold the way against downward shlfting movement onthe grille.

6. The structure defined in claim 4: in which the ratchet teeth arearranged in two laterally spaced rows which extend into the passageway,engage the grille on opposite sides thereof to hold the way againstshifting movement transversely of said passageway.

In testimony whereof I aiiix my signature.

EDWARD H. SEELERT.

